H-Pyrazole-3-carboxylic acid 4-bromo-1 5-dimethyl-(CAS# 5775-91-7)

Selelekela

Acid, 4-bromo-1, 5-dimethanol-ke motsoako oo motsoako oa oona oa lik'hemik'hale e leng C7H8BrNO2.

Tlhaho:

1. Ponahalo: acid, 4-bromo-1,5-dimethyl-white e tiileng.

2. Sebaka se qhibilihang: Sebaka se qhibilihang sa motsoako se pakeng tsa 128-130 ° C.

3. Sollubility: E qhibiliha ka har'a metsoako e meng ea tlhaho, e kang ethanol le dichloromethane, empa e sa qhibilihe metsing.

Sebelisa:

Acid, 4-bromo-1,5-dimethyl-e na le boleng bo itseng ba ts'ebeliso ho organic synthesis, mme e sebelisoa haholo ho aha masapo a limolek'hule tsa manyolo le ho tataisa karabelo. E ka sebelisoa e le setsi sa ho kopanya chefo e bolaeang likokoanyana, meriana le dae.

Mokhoa oa ho itokisa:

acid, 4-bromo-1,5-dimethyl-e ka etsoa ka mehato e latelang-:

1. Ntlha ea pele, methyl methacrylate le aniline li itšoara tlas'a catalysis ea alkali ho lokisetsa 1,5-dimethyl-1H-pyrazole.

2. 1,5-dimethyl -1H-pyrazole e itšoara ka bromide ea hydrogen ka pel'a acetic acid ho hlahisa 4-bromo-1, 5-dimethyl -1H-pyrazole.

3. Qetellong, 4-bromo-1, 5-dimethyl-1H-pyrazole e itšoara ka sodium hydroxide kapa sodium carbonate ho hlahisa acid, 4-bromo-1,5-dimethy-.

Lintlha tsa Tšireletseho:

Mabapi le polokeho ea acid, 4-bromo-1,5-dimethyl-, lintlha tse latelang li hloka ho hlokomeloa:

1. motsoako o ka 'na oa halefisa mahlo, letlalo le tsamaiso ea ho hema, ka kopo qoba ho kopana ka ho toba.

2. Nakong ea tšebeliso, qoba ho hema lerōle kapa mouoane oa tharollo.

3. Nakong ea ts'ebetso le polokelo, moea o motle le mehato ea ho itšireletsa e lokela ho nkoa, e kang ho roala likhalase tse sireletsang, liatlana le liaparo tse loketseng tsa tšireletso.

4. Haeba u kopana le motsoako ona, hang-hang hlatsoa sebaka se amehileng ka metsi a mangata 'me u buisane le keletso ea ngaka ea hau.

Litaba tsena ke tsa litšupiso feela. Ka kopo bala le ho latela leqephe la polokeho ea khemikhale e amehang pele o sebelisoa.